3M 26878 Manuel D'utilisation Du Système page 18

Locking Collar Removal
If desired, the atomizing head locking collar
can be removed from gun frame in order to
thoroughly clean head of gun body.
1. While atomizing head locking collar is in the
"+ configuration" and without an atomizing
head attached to the spray gun body, pull
locking collar firmly forward.
2. Reverse process to re-attach locking collar
ensuring that the retention bumps on the ID
align with spray gun body head protrusions.
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